公开(公告)号：US06557632B2

公开(公告)日：2003-05-06

申请号：US09809153

申请日：2001-03-15

Applicant: James T. Cernosek

Inventor： James T. Cernosek

IPC: E21B4300

CPC classification number: E21B49/082

Abstract: An apparatus and method is given for evaluating a well fluid sub-sample at the well surface as the sample is transported to the well surface from a downhole wellbore location. The invention collects a formation fluid sample under pressure. The fluid sample is further pressurized with a traveling piston powered by the hydrostatic wellbore pressure. The pressurized formation fluid sample is contained under high pressure within a fixed volume chamber for retrieval to the well surface. Multiple collection tanks can be lowered into the wellbore during the same run to sample different zones with minimal rig time. A pair of valves in series along the supply/discharge conduit respective to each tank accommodates extraction of a field sample to verify the sample integrity while still on location. The tanks can be emptied at the well surface with an evacuation pressure so that the fluid sample pressure is maintained above a selected pressure at all times or transported to an analytical laboratory.

公开(公告)号：US20140224474A1

公开(公告)日：2014-08-14

申请号：US13767588

申请日：2013-02-14

Applicant: James T. Cernosek ,  Russell W. McEacharn ,  Bernardo E. Pohl ,  Marcelo F. Civarolo ,  Jorge O. Maxit

Inventor： James T. Cernosek ,  Russell W. McEacharn ,  Bernardo E. Pohl ,  Marcelo F. Civarolo ,  Jorge O. Maxit

IPC: E21B49/08

CPC classification number: E21B49/10 ,  E21B49/00 ,  E21B49/08 ,  E21B49/081

Abstract: In one aspect, an apparatus for use in a wellbore formed in a formation is disclosed that in one embodiment includes a device for supplying a hydraulic fluid under pressure to a common hydraulic line, a first pump in hydraulic communication with the common hydraulic line via a first variable fluid control device, a second pump in hydraulic communication with the common hydraulic line via a second variable fluid control device, and at least one controller that controls flow of the hydraulic fluid from the first variable flow control device to the first pump and the flow of the hydraulic fluid from the second variable flow control device to the second pump to independently control the operation of the first pump and the second pump. In another aspect, the first pump is coupled to a first probe for extracting fluid from the formation and the second pump is coupled to a second probe for extracting the fluid from the formation.

Abstract translation: 在一个方面，公开了一种用于形成在地层中的井眼中的装置，在一个实施例中，包括用于将压力下的液压流体供应到公共液压管路的装置，与通用液压管线 第一可变流体控制装置，经由第二可变流体控制装置与公共液压管路液压连通的第二泵以及至少一个控制器，其控制液压流体从第一可变流量控制装置到第一泵的流动， 液压流体从第二可变流量控制装置流到第二泵，以独立地控制第一泵和第二泵的运行。 在另一方面，第一泵耦合到第一探针，用于从地层中提取流体，而第二泵耦合到第二探针，用于从地层中提取流体。

公开(公告)号：US20140196532A1

公开(公告)日：2014-07-17

申请号：US13739811

申请日：2013-01-11

Applicant: Wade Bullock ,  James T. Cernosek

Inventor： Wade Bullock ,  James T. Cernosek

IPC: E21B49/08

CPC classification number: E21B49/08 ,  E21B49/10

Abstract: In one aspect, a method of obtaining a fluid from a formation is disclosed that in one embodiment may include: pumping fluid received by a first probe from the formation into the wellbore; pumping fluid received by a second probe from the formation into the wellbore; determining when the fluid received by one of the first and second probes is clean; and pumping the fluid received by the first probe into a sample chamber while collecting the formation fluid received by the second probe from the formation into a storage chamber having an internal pressure less than the pressure of the formation.

Abstract translation: 在一个方面，公开了一种从地层获得流体的方法，在一个实施例中可包括：将由第一探针接收的流体从地层泵送到井筒中; 将由第二探针接收的流体从地层泵送到井筒中; 确定由第一和第二探针中的一个接收的流体何时是干净的; 以及将由第一探针接收的流体泵送到样品室中，同时将由第二探针接收的地层流体从地层收集到具有小于地层压力的内部压力的储存室中。

公开(公告)号：US07669469B2

公开(公告)日：2010-03-02

申请号：US10836993

申请日：2004-04-30

Applicant: Michael Shammai ,  Francisco G. Sanchez ,  James T. Cernosek ,  Rocco DiFoggio

Inventor： Michael Shammai ,  Francisco G. Sanchez ,  James T. Cernosek ,  Rocco DiFoggio

IPC: E21B49/08 ,  E21B47/06

CPC classification number: E21B49/082

Abstract: The present invention provides an apparatus and method for continuously monitoring the integrity of a pressurized well bore fluid sample collected downhole in an earth boring or well bore. The CDR continuous by measures the temperature and pressure for the down hole sample. Near infrared, mid infrared and visible light analysis is also performed on the small amount of sample to provide an on site analysis of sample properties and contamination level. The onsite analysis comprises determination of gas oil ratio, API gravity and various other parameters which can be estimated by a trained neural network or chemometric equation a flexural mechanical resonator is also provided to measure fluid density and viscosity from which additional parameters can be estimated by a trained neural network or chemometric equation. The sample tank is overpressured or supercharged to obviate adverse pressure drop or other effects of diverting a small sample to the CDR.

Abstract translation: 本发明提供一种用于连续监测在钻孔或井眼中收集在井下的加压井眼流体样品的完整性的装置和方法。 CDR连续测量井下样品的温度和压力。 还对少量样品进行近红外，中红外和可见光分析，以提供样品性质和污染水平的现场分析。 现场分析包括确定瓦斯油比率，API重力和可由训练有素的神经网络或化学计量学方程估计的各种其他参数，还提供弯曲机械共振器以测量流体密度和粘度，通过其可以通过 训练有素的神经网络或化学计量学方程。 样品罐超压或增压，以消除不利的压降或将小样品转移到CDR的其他影响。

公开(公告)号：US5377755A

公开(公告)日：1995-01-03

申请号：US228740

申请日：1994-04-18

Applicant: John M. Michaels ,  John T. Leder ,  James T. Cernosek

Inventor： John M. Michaels ,  John T. Leder ,  James T. Cernosek

IPC: E21B49/10 ,  E21B49/00

CPC classification number: E21B49/10

Abstract: A method and apparatus for downhole formation testing is provided for acquisition of a phase intact sample of connate fluid by direct or indirect pumping for filling of pressure containing sample tanks that are removable from a formation testing and sampling instrument for phase intact transportation to a laboratory facility. One or more fluid sample tanks contained within the instrument are filled with connate fluid samples in such manner that during filling of the sample tanks the pressure of the connate fluid is maintained within the predetermined range above the bubble point of the fluid sample. The sample tank incorporates an internal free-floating piston which separates the sample tank into sample containing and pressure evacuation chambers. During indirect pumping a positive displacement piston pump draws fluid from the pressure evacuation chamber and permits formation pressure to shift the separator piston as the first variable volume chamber is filled with a connate fluid sample. The sample tank is provided with a cut-off valve enabling the pressure of the fluid sample to be maintained after the formation testing instrument has been retrieved from the well bore for transportation to a laboratory facility. To compensate for pressure decrease upon cooling of the sample tank and its contents, the piston pump mechanism of the instrument has the capability during direct pumping for increasing the pressure of the sample sufficiently above the bubble point of the sample that any pressure reduction that occurs upon cooling will not decrease the pressure of the fluid sample below its bubble point.

Abstract translation: 提供了一种用于井下形成测试的方法和装置，用于通过直接或间接泵送用于填充含有来自地层测试和采样仪器的压力的样品罐的相位完整样品，用于相位完整运输到实验室设备 。 容纳在仪器内的一个或多个流体样品罐以合适的流体样品填充，使得在填充样品罐期间，原生液体的压力保持在高于流体样品的起泡点的预定范围内。 样品槽包含一个内部自由浮动活塞，将活塞分离成样品容器和排气室。 在间接泵送期间，正排量活塞泵从压力抽空室抽取流体，并且当第一可变体积室充满合适的流体样品时允许形成压力移动分离器活塞。 样品罐设置有截止阀，使得能够在形成测试仪器已经从井眼中回收以运送到实验室设备之后保持流体样品的压力。 为了补偿冷却样品罐及其内容物时的压力降低，仪器的活塞泵机构具有在直接泵送期间提高样品压力的能力，足以使样品的气泡点高于样品的起泡点，发生任何压力降低 冷却不会降低流体样品低于其起泡点的压力。